Data logger



FIG. 1 is a front view of a data logger showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front, bottom and left side perspective view thereof.

The broken lines are for illustrative purposes only and form no part ofthe claimed design.

CLAIM The ornamental design for a data logger, as shown and described.